Automatic sprinkler-head.



PATENTED JAN. 28, 190.8.

E. M. COOK.

AUTOMATIC SPRINKLER HEAD.

APPLICATION TILED APR- 9. 1907.

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EMANUELM. COOK, OF INDIANAPOLIS, INDIANA.

AUTOMATIC SPRINKLE R-HE AD.

' Specification of Letters Patent.

Patented Jan. 28, 1908.

Application filed April 9 1907. Serial Nb- 367.280.

To all whom it may concern: a

Be it known that I, EMANUEL M. Coon, a. citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Automatic Sprinkler-Heads, of which the following is a specification.

The object of my invention is to produce an improved meansfor holding valves in automatic'sprinkler heads.

The accompanying drawings illustrate my invention. v

Figure 1 is a central vertical section of an embodiment of my invention; Fi 2 is an elevation thereof; Fig. 3 a detail p an of the adjacentends ofthe. levers, and Fig. 4 an elevation showing the osition assumed by the arts immediately a ter the fusing of the fusile solder.

In the accompanying I drawings 10 indicates an ordinary sprinkler head provided with a valve seatll, valve 12 and the adjust able abutment 13. In. order to hold 1 the valve 12 to its seat-I provide a pair of L-'- shaped'levers 14 and 15 which are so'iormed att eir heels 16as to form a toggle joint offset slightly to one side from aline connecting their 'ti s 14 and 15 respectively. The long arm 14 (of-lever '14 is provided with a downturned. lipv '17 having a erfo'ration 18, and long arm 15 of lever 15 is somewhat shorter than the arm 14". in order that it may lie in front of the lip 17. In order to hold the long arms of the levers together I provide a thin plate 19lhavinga short finger 20 adapted to enterthe o emn'g 18.

. gether,

In assem ling the arts the tip of the long arm 15" of lever 15, tile lower face of arm 14! adjacent ii 17, and one face of plate 19 are coated wit a solder 21 having the desired fusin temperature; The levers are placed toget er, as shown in Fig. 1, with plate 19 beneath the tip of arm 15 and with its finger 20 in opening 18, and when in this relation the solder is fused and cooled so as to hold the parts together. Valve 12'is then placed in position and the composite lever secured in lace by screwing pin 13 down hard u on t e toe of lever 14, thus placing the sol er 21 under tension, the strength of the solder being supplemented by the finger 20 of plate '19, the arrangement bein such that very considerable pressure may ieexerted normally on the toes of the levers.

As soon as the temperature rises enough to soften the solder it. is levers swing outwardly on their heels, plate 19 dropping so as to quickly fire the levers, and valve 12 is blown from its seat by the water. his not necessary that the solder should be between the two levers, as the plate 19 is sufficient to hold the levers to but, in the ordinary assembling of the parts the solder will creepbetween the levers and it will do no I claim as my invention:

1. A holding member for valves of auto matic sprinkler heads, comprising a pair of L-shaped levers pivoted at. their heels and having engaging portions at the ends of their long arms, a perforated downturned lip on the long arm of one of said levers, an independent member having a, portion adapted 'to enter the perforation in said downturned lip and another portion lying alongside the long arm of the other of said levers, and an easily fusible solder cementing the adjacent engaging portions of the arms and the independent member together.

2. The combination, with a s rinkler head and its valve, of a pair of L-s aped levers having a toggle interengagement at their heels and having engaging portions at the ends of their long arms, a downturned lip on the long arm of one of said levers, an independent member having a portion adapted ruptured and the harm in that location.

to engage said lip and another portion lylng alongside the long arm of the other of said levers, and an easily fusible solder cementing the adjacent engaging portions of the arms I and the independent member together, and

an abutment carried by the sprinkler head for engagement by the short arm of one lever, the short arm of the other lever engaging the valve.

In witness whereof, I have hereunto set m hand and seal at Indianapolis, Indiana, this fifth day of April, A. D. one thousand nine hundred and seven.

. EMANUEL M. COOK.

Witnesses:

ARTHUR M. Hoon, THoMAs W. MOMEAN'S. 

